The 4 X 4" Double Extra Heavy Black Nipple from Service Metal Products is designed for high-demand applications requiring robust connections. Constructed from premium black steel, this nipple offers exceptional strength and durability, making it suitable for both commercial and residential plumbing systems. With a 4-inch diameter and a length of 4 inches, it provides a secure link between two fittings or pipes. This product meets stringent industry standards, ensuring compliance with safety and performance requirements. Ideal for use in various applications, including water, gas, and oil, this nipple is a reliable choice for any piping installation.